Valve for water-gages.



Patented Sept. i0, l90l.

w.v H. & A-LJ. BAIL EY. VALVE FGRWATER GAGES.

(Application filed Jan. 29, 1901.)

2 Sheets-Sheet I.

(No Model.)

mug/rolls 7M4...

ATTORNEYS No. 682,l62. Patented Sent. I0. I90],

W. H. &. A. J.- BAILEY. VALVE- FQB WATER GAGES.

(Application filed Jan. 29, 1901.) I (No Model.) 2 Sheets-Sheet 2.

WITNESSES.

UNITED STATES PATENT @FFICE.

WILLIAM H. BAILEY AND ALFRED J. BAILEY, OF SALFORD, ENGLAND.

VALVE FOR WATER-GAG ES.

SPECIFICATION forming part of Letters PatentNo. 682,162, dated September 10, 1901.

Application filed January 29, 1901. Serial No. 45,222. (No model.)

'T0 at whom it may concern.-

Be it known that we, WILLIAM HENRY BAILEY, knight, and ALFRED J OHN BAILEY, subjects of the Queen of Great Britain, and residents of Salford, in the county of Lancaster, England, have invented certain new and useful Improvements in the Valves Employed in Water-Gages for Steam-Boilers and the Like, of which the following is a specification.

Our invention relates to improvements in the valves employed in water=gages for steamboilers and the like, and particularly to the construction now well known as the scavenger-gage, the chief object of the invention being to make the seatings for the valves readily renewable. In this water-gage the bottom valve is composed of three parts: first, a fitting which is secured to the boiler or other vessel by means of a flange or other connection; second, the casting which supports the gage-glass, and, third, the part forming the blow-off valve and handle and screw. These parts are connected and clamped together by bolts. The seatings of the valves, which are preferably the same size and shape (so as to be interchangeable) and which can be made of any metal or material, are ac-' cording to our invention fitted to both sides of the gage-glass casting in such a manner that by removing the bolts the seatings can be readily replaced. WVe may employ a like construction for the top valve for the gage-glass, with either a single valve-seating or two renewable valve-seatings.

In the accompanying two sheets of drawings, Figure 1 is a sectional elevation of the bottom valve of our improved water-gage. Fig. 2 is a sectional plan, and Fig. 3 is a front elevation, of the same. Fig. 4 is a sectional elevation of the top valve. Figs. 5 and 6 are transverse sections of the scavenger-blade, taken, respectively, on the planes of the lines A B and O D, Fig. 1. Figs. 7 and 8 are detail views of the renewable valve-seating, and Figs. 9 and 10 are detail views of the renewable valve.

In Figs. 1, 2, and 3 of the drawings, a b c designate the three parts which compose the bottom valve. Of these, Ct is the fitting, which is secured to the boiler or other vessel by means of its flange, b is the casting, which comprising the blow-off valve and handle 6 and screw f. These three parts a b c are connected and clamped together by the bolts g, and an advantage of this construction is that by slackening the nuts on the-bolts g the casting b can be adjusted and the gage-glass swiveled to any desired inclination as required to obtain the necessary alinement of the fittings when securing the gage to a boiler. The valve-seatings h, (see Figs. 7 and 8,) which are preferably of the same size and shape (so as to be interchangeable) and which can be made of any suitable metal or material, are according to our invention fitted to both sides of the gage-glass casting b, as clearly shown in Figs. 1 and 2, in such a manner that by removing the bolts 9 the seatings h can be readily taken out and replaced. The remainder of the bottom valve is made up in the usual way, the valve 17 (see Figs. 9 and 10) being mounted on the squared portion of the spindle 7a, which has the handle 6 fixed to it by the nut m. WVhen the handle 6 is in the position shown in Figs. 1, 2, and 3, the valve 't'is held tightly against the left-hand seating 7t, and so shuts 0% communication from the boiler to the gage-glass. When the handle 6 is moved into the position indicated by (lot ted lines in Fig. 3, the coarse screw f actuates the valve-spindle 7c and brings the valve t' tightly against the right-hand seating 7t,thereby fully opening the communication between the boiler and the gage glass d. When the handle 6 is placed in the intermediate position, the valvet' will be held midway between the two seatings h, and the communications will be open between the boiler, the gageglass, and the blow-off pipe or passage 0. We may attach a single scavenger-blade to the valve-spindle It, as hitherto, or two or more such blades. For'example,we show three scavenger blades 10 (see Figs. 5 and 6) screwed upon the threaded end of the valve-spindle 7c and made fast there by a pin q. We may, as illustrated in Fig. 4, employ a like construction for the top valve for the gage-glass. In this view the parts corresponding to the parts a b c e f h 't' m p g, already described with reference to the bottom valve, are here designated a, b, c, e, f, h, t', 70, m, p, and q, while the gage-glass is marked 01, as in Figs. 1 and 2. In thisconstruction the part chas no bloW-oflf valve, but merely carries a third part carrying the handle of the valve spindle and bolts for clamping the aforesaid parts together, of renewable valve-seatings fitted to both sides of the gage-glass casting substantially as and for the purposes herein set forth.

In witness whereof we have hereunto set 20 our hands in presence of two Witnesses.

W. H. BAILEY.

A. J. BAILEY.

Witnesses:

S. W. GILLETT, HERBERT R. ABBEY. 

